Tax lawyers would get no businesses if all people all strictly follow to the tax rules. If you are rich enough and want to spend some, why not go claim more tax credits if you want to.
I was really bored.
But here is one condition that you can claim your dog.
Animals - the cost of a specially trained animal for use by a person who is blind, profoundly deaf, or has a severe and prolonged physical impairment that markedly restricts the use of their arms or legs. In addition to the cost of the animal, the care and maintenance (including food and veterinarian care) are eligible expenses. Reasonable travel expenses incurred for the patient to attend a school, institution or other place that trains him or her in the handling of such an animal (including reasonable board and lodging for full-time attendance at the school), are eligible expenses. The animal must be provided by a person or organization whose purpose is training such animals.
For 2008 and later years, the eligibility to claim the cost of specially trained animals and their related expenses, has been extended to persons who are severely affected by autism or epilepsy.
The cost of a haircut is not deductible against employment income even when you are a serviceman and you are required to get one every two weeks. (Rouillard v. The Queen [2000] 4 C.T.C. 2065)